..reuteri prior to treatment. The twice-daily administration of L. reuteri appeared more effective than every-other-day administration. These data indicated that L. reuteri partially protects mice from disease manifestations of EHEC...

..We propose that this system may be useful in standardizing the morphologic evaluation of rodent models of H. pylori and that a similar system could be devised for evaluation of other animal models of enteric disease...

Role of transcription factor T-bet expression by CD4+ cells in gastritis due to Helicobacter pylori in mice

..Influx of CD4 cells and gastritis are correlated with epithelial proliferation and apoptosis, and suggest that CD4-dependent H. pylori gastritis leads to epithelial damage with attendant proliferative and metaplastic responses...

In vivo complementation of ureB restores the ability of Helicobacter pylori to colonize

..At this time, wild mice found in our animal facilities do not appear to be a significant source of common laboratory mouse viral pathogens. However, they are a potential source of Helicobacter infections...

..This case study is the first report of Clostridium perfringens myonecrosis in a laboratory nonhuman primate. We discuss various methodologies for the diagnosis and treatment of necrotizing clostridial infections...

..In spite of better colonization, however, wild-type strains did not displace the mutant in cocolonization experiments. Loss of 6PGD diminishes the fitness of H. pylori in vivo, but the pathway is nonessential for colonization...

..High Ctox in parietal cells can also induce progressive changes in the cellular architecture of the gastric glands, corresponding to the development of anti-parietal cell antibodies and autoimmune gastritis...

..The serum immunoglobulin G levels correlated with protection (P = 0.03). This is the first report describing the in vivo cytotoxicity and antigenicity of an autotransporter in P. mirabilis and its use in vaccine development...

Chronic gastritis in the hypochlorhydric gastrin-deficient mouse progresses to adenocarcinoma

..pylori, its ability to infect mice, and its ability to coexist and recombine with certain H. pylori strains in vivo should be useful in studies of Helicobacter infection and virulence mechanisms and studies of genome evolution...

Modulation of host immune responses by the cytolethal distending toxin of Helicobacter hepaticus

..hepaticus. These results suggest that CDT plays a key immunomodulatory role that allows persistence of H. hepaticus and that in IL-10-/- mice this alteration of the host immune response results in the development of colitis...